* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

li {
    list-style: none;
}

a {
    text-decoration: none;
}

img {
    width: 100%;
    vertical-align: middle;
}

.box {
    width: 1110px;
    height: 247px;
    margin: 20px auto;
}

.box li {
    position: relative;
    float: left;
    width: 350px;
    height: 247px;
    margin-right: 30px;
    /* overflow: hidden; */
}
.box li::after {
    content: '';
    width: 350px;
    height: 247px;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: all, 1s;
    background-image: linear-gradient(to bottom, transparent, rgba(0, 0, 0, 0.5));
}

.box li:last-child {
    margin-right: 0;
}
.center{
    position: absolute;
    padding: 20px;
    color: aliceblue;
    bottom: 0;
    left: 0;
}
.box li:hover .center{  
    transform: translate(0,-60px);
    transition: all 1s;
}
.box li:hover .more{
    animation: more1  0.5s 0.3s forwards;
}
.box li:hover::after{
    opacity: 1;
}

.more{
    position: absolute;
    padding: 20px;
    color: aliceblue;
    bottom: 0;
    left: 0;
    opacity: 0;
}
.more span{
    color: red;
}
@keyframes more1 {
    from{
        opacity: 0;
    }
    to{
        opacity: 1;
    }
}





